test: do not ignore 'tools/benchmark/cmd'
test: do not ignore 'tools/benchmark/cmd'

Signed-off-by: Gyu-Ho Lee <3454051ee3341eb69bdf6fca40899cdad4d86496@gmail.com>

coreos/etcd,xiang90/etcd,joshix/etcd,mqliang/etcd,armstrongli/etcd,ajityagaty/etcd,YuleiXiao/etcd,glevand/coreos--etcd,cockroachdb/etcd,li-ang/etcd,rnaveiras/etcd,sebrandon1/etcd,gyuho/etcd,sinsharat/etcd,fanminshi/etcd,rnaveiras/etcd,sebrandon1/etcd,ajityagaty/etcd,akauppi/etcd,joshix/etcd,etcd-io/etcd,YuleiXiao/etcd,yudai/etcd,mickep76/etcd,bluebreezecf/etcd,plasticbox/etcd,mkumatag/etcd,mkumatag/etcd,rnaveiras/etcd,visheshnp/etcd,a-robinson/etcd,bluebreezecf/etcd,armstrongli/etcd,dannysauer/etcd,visheshnp/etcd,lorneli/etcd,vimalk78/etcd,vimalk78/etcd,whuwxl/etcd,mickep76/etcd,coreos/etcd,etcd-io/etcd,mkumatag/etcd,heyitsanthony/etcd,plasticbox/etcd,heyitsanthony/etcd,glevand/coreos--etcd,mqliang/etcd,ajityagaty/etcd,xiang90/etcd,whuwxl/etcd,fanminshi/etcd,sinsharat/etcd,bdarnell/etcd,yudai/etcd,etcd-io/etcd,cockroachdb/etcd,dannysauer/etcd,bdarnell/etcd,mqliang/etcd,li-ang/etcd,akauppi/etcd,gyuho/etcd,a-robinson/etcd,lorneli/etcd